Nicola Sturgeon has warned Lanarkshire could be moved into the toughest level of lockdown when existing restrictions are reviewed next week.The First Minister said it was "not enough" to merely stabilise the number of people testing positive for Covid in Scotland as the winter months drew in.North and South Lanarkshire are currently at level three - meaning non-essential shops and some hospitality businesses can remain open - but it had been widely tipped the counties would be placed at level